0 Replies Latest reply on Mar 28, 2011 6:45 AM by hitheshmurthy

    Compact PCI electrical specs

    Community Member

      I am new to compact PCI. I just finished doing Signal integrity analysis on one of our backplanes.

      I could not see any suggestion for termination resistors in the compact PCI electrical specs.

       

      Usually PCI drivers have internal impedance of roughly 7-10ohms. PCB traces rarely have that kinda impedance.

      Is it left to us to add a series termination resistor?

       

      Moreover, there are no specs for Overshoot and Undershoot. Am I missing something?